Collet Chuck Instruction Manual

INSTALLATION AND SERVICE INSTRUCTIONS
I.D. AND O.D. GRIP COLLET CHUCKS
WWW.FORKARDT.US
Main Office
2155 Traversefield Drive
Traverse City, Mi. 49686
E-mail: [email protected]
800-544-3823 Toll Free
231-995-8300 Phone
231-995-8361 Fax
IL, IA, NE, WI, MN, ND, SD
Chris Brown
Office: 231-995-8327
Mobile: 231-557-5295
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Michigan and all other states not listed
Forkardt
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Fax: 231-995-8361
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IN, TN, KY, OH, WV
Jim Farrell
Office: 231-995-8334
Mobile: 248-765-9456
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Ontario, Canada
Brian Braden
Office: 231-995-8337
Mobile: 248-361-9616
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KS, MO, AR, TX, LA, OK, NM, AZ, CA
Jeremy Michael
Office: 231-995-8338
Mobile: 713-306-4619
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For Quebec, Canada
Bob Holtz
Mobile: 860-481-1948
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AL, GA, MS, NC, SC, VA, FL
Mark Zimmerman
Mobile: 248-361-7443
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MA, VT, NH, ME, RI, NJ, MD, DE, PA,
NY
Bob Holtz
Mobile: 860-481-1948
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For Mexico
Sergio Echegoyen
Dinamarca 209 INT 3
Las Mercedes
San Luis Potosi, S.L.P.
Mexico 78394
Office: 52 1 444-824-9955
Mobile: 52 1 444-131-4376
Fax: 52 1 444-824-9955
China
Kevin Dong
1F, Bldg 2#, 458 Fute Rd. (N.),
Shanghai Waigaoqiao F.T.Z.
200131 P.R.C.
Office: 86-021-58682809-110
Mobile: 86-15000302788
[email protected]
Brazil
Andre Silva
Kare Tools
R-Capitao Rabello, 113 Guarulhos
Brazil, 070630
Office: 55-11-2937-9646
Mobile: 55-11-7733-8697
General Safety Instructions
Assembling the collet chuck
When assembling the chuck to the machine, the following safety requirements must be observed:
 Do not start the machine spindle until the part has been securely clamped.
 Do not unclamp the chuck until the machine spindle has completely stopped rotating
 In the case of loss of power, the workpiece must remain securely clamped until the spindle has completely
stopped rotating.
Functional Test
After assembling the chuck, check for proper functioning before operating.
 Clamping Force– the specified drawbar force must be achieved to insure proper clamping force.
 Stroke– the stroke of the drawbar must allow a safety zone at each end of its stroke to insure that the chuck
can reach its full travel and not be restricted by the drawbar.
Speed
If the maximum speed of the lathe is higher than the recommended max RPM of the chuck, the machine must be
equipped with a speed limiting device.
Maintenance
 Only operate the chuck when all safety devices are in place.
 Check the chuck at least once per shift for visible damage.
 After a collision, the chuck should be thoroughly examined for damage prior to being put back into operation.
Please observe safety during the transportation and handling of
chucks of considerable weight.
Do not make any alterations to this chuck without contacting
your sales representative. Alterations, improper repair, or use
of incorrect spare parts will result in voidance of warranty.
Always make sure spindle has come to a complete stop before
removing or changing parts.
ID Grip Collet Chucks Installation
The chuck assembly must be true on the machine for best concentricity results when machining parts. The
following procedures should be used when indicating the chuck assembly on the spindle.
1. Mount machine adapter to spindle with the correct number of spindle mounting screws, making sure all
mating surfaces are free of nicks, burrs, dirt, etc.
2. Carefully screw drawbar adapter onto the drawbar and tighten.
3. Put the body on, securing with correct number of screws until snug only. (Do not torque mounting bolts
completely yet)
4. With an indicator on the taper of the body or indicating band, adjust the stir screws on the O.D. of the body
to run true. This should run at 0.0002” or better.
5. Torque mounting bolts completely and double check run-out. Repeat step 4 if needed.
You are now ready to assemble top tooling collet, locator and cover plate.
1. Be sure the collet is free of all nicks, burrs, dirt, etc. Using a liberal amount of lube on the pilot and taper of
the collet, line bolt holes in the collet to bolt holes in the body. Place socket head cap screws into the bolt
holes and tighten down.
2. When mounting the locator, you must line up the roll-pin, if so equipped, in the body to the hole in the locator to ensure the air sensing holes are in place. Use socket head cap screws to secure the locator in place.
OD Grip Collet Chucks Installation
The chuck assembly must be true on the machine for best concentricity results when machining parts. The
following procedures should be used when indicating the chuck assembly on the spindle.
1. Mount machine adapter to spindle with the correct number of spindle mounting screws, making sure all
mating surfaces are free of nicks, burrs, dirt, etc.
2. Carefully screw drawbar adapter onto the drawbar and tighten.
3. Put the body on, securing with correct number of screws until snug only. (Do not torque mounting bolts
completely yet)
4. With an indicator on the taper of the body or indicating band, adjust the stir screws on the O.D. of the body
to run true. This should run at 0.0002” or better.
5. Torque mounting bolts completely and double check run-out. Repeat step 4 if needed.
You are now ready to assemble top tooling collet, locator and cover plate.
1. Be sure the collet is free of all nicks, burrs, dirt, etc. Using a liberal amount of lube on the pilot and taper of
the collet, line bolt holes in the collet to bolt holes in the body. Place socket head cap screws into the bolt
holes and tighten down.
2. When mounting the locator, you must line up the roll-pin, if so equipped, in the body to the hole in the locator to ensure the air sensing holes are in place. Use socket head cap screws to secure the locator in place.
Troubleshooting
Problem
Possible Cause
Solution
Workpiece is eccentrically out of
tolerance
Chuck is not concentric
Check concentricity and adjust as
necessary
Workpiece is out of tolerance
Soiled coupling or taper
Remove clamping head and clean
coupling area
Worn Collet
Not enough stroke or chuck does not
open
Soiling between draw
mechanism and chuck body
Remove clamping head, move drawtube
back and clean slot in coupling area
Drawtube adapter or draw
Check drawtube adapter or draw
mechanism is out of tolerance mechanism position and adjust as needed
Inadequate drawbar stroke
Workpiece out of shape
A workpiece is bent during
clamping process. After machining it should go back to
its original shape
Use starting material that is less prone to
deformation.
Marks on part surface
Point or linear work piece
clamping
The difference between the workpiece
diameter and the clamping head ID is too
large
Wrong clamping head type
Change from serrated to smooth bore
clamping head
Not enough clamping pressure
Workpiece is undersize/
oversize
Not enough hydraulic
pressure at the cylinder
Change to clamping head that fits properly
Check cylinder inlet pressure on machine
Contact machine builder
Defective cylinder or blocked
drawtube
Alterations or improper repair of chuck could void your warranty. Please contact our repair
department if you need repair of this chuck. If the chuck is out of warranty, our full service repair
department can repair your chuck using original manufacturer parts.
NOTES:
All rights to this operating manual remain property of Forkardt
This manual is intended for fitting, operating and maintenance personnel. It contains regulations and drawings of a technical nature which may be neither wholly
nor partially reproduced or distributed to other parties or used for competitive aims
without prior written authorization from Forkardt. Furthermore, Forkardt accepts no
liability for inaccuracy or incompleteness of this manual which is believed to be
complete and comprehensive upon going to press. If in doubt, contact should be
made with Forkardt immediately
Forkardt
2155 Traversefield Dr
Traverse City, MI 49686
231-995-8300
WWW.FORKARDT.US
Made in USA
© 2012 COPYRIGHT FORKARDT INC.
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